/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 00:19:26,591 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 00:19:26,594 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 00:19:26,662 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-14 00:19:26,662 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-14 00:19:26,665 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-14 00:19:26,667 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-14 00:19:26,672 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-14 00:19:26,674 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-14 00:19:26,678 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-14 00:19:26,679 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-14 00:19:26,680 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-14 00:19:26,681 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-14 00:19:26,682 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-14 00:19:26,683 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-14 00:19:26,684 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-14 00:19:26,688 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-14 00:19:26,688 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-14 00:19:26,690 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-14 00:19:26,697 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-14 00:19:26,698 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-14 00:19:26,699 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-14 00:19:26,700 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-14 00:19:26,701 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-14 00:19:26,707 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-14 00:19:26,707 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-14 00:19:26,707 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-14 00:19:26,708 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-14 00:19:26,709 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-14 00:19:26,709 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-14 00:19:26,710 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-14 00:19:26,710 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-14 00:19:26,711 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-14 00:19:26,712 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-14 00:19:26,734 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-14 00:19:26,734 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-14 00:19:26,734 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-14 00:19:26,734 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-14 00:19:26,735 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-14 00:19:26,735 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-14 00:19:26,736 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-14 00:19:26,739 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf [2021-07-14 00:19:26,767 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 00:19:26,767 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 00:19:26,769 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 00:19:26,770 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 00:19:26,770 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 00:19:26,770 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 00:19:26,770 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 00:19:26,770 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 00:19:26,770 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 00:19:26,771 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 00:19:26,771 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 00:19:26,772 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 00:19:26,772 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 00:19:26,772 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 00:19:26,772 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 00:19:26,772 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 00:19:26,772 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 00:19:26,772 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 00:19:26,772 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 00:19:26,773 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 00:19:26,773 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 00:19:26,773 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 00:19:26,773 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 00:19:26,773 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 00:19:26,773 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 00:19:26,774 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 00:19:26,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 00:19:26,774 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 00:19:26,774 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 00:19:26,774 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-07-14 00:19:26,774 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 00:19:27,066 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 00:19:27,089 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 00:19:27,091 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 00:19:27,092 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-14 00:19:27,092 INFO L275 PluginConnector]: CDTParser initialized [2021-07-14 00:19:27,093 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.opt.i [2021-07-14 00:19:27,154 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89bfc4845/6ea1ffcbe3b24d218b51f27da13628d8/FLAG206abe985 [2021-07-14 00:19:27,607 INFO L306 CDTParser]: Found 1 translation units. [2021-07-14 00:19:27,608 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_pso.opt.i [2021-07-14 00:19:27,618 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89bfc4845/6ea1ffcbe3b24d218b51f27da13628d8/FLAG206abe985 [2021-07-14 00:19:27,931 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89bfc4845/6ea1ffcbe3b24d218b51f27da13628d8 [2021-07-14 00:19:27,933 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 00:19:27,935 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-14 00:19:27,936 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-14 00:19:27,936 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-14 00:19:27,955 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-14 00:19:27,956 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:19:27" (1/1) ... [2021-07-14 00:19:27,957 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4092a5d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:19:27, skipping insertion in model container [2021-07-14 00:19:27,957 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:19:27" (1/1) ... [2021-07-14 00:19:27,963 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-14 00:19:28,029 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-14 00:19:28,136 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_pso.opt.i[949,962] [2021-07-14 00:19:28,293 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-14 00:19:28,300 INFO L203 MainTranslator]: Completed pre-run [2021-07-14 00:19:28,310 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_pso.opt.i[949,962] [2021-07-14 00:19:28,336 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-14 00:19:28,367 INFO L208 MainTranslator]: Completed translation [2021-07-14 00:19:28,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:19:28 WrapperNode [2021-07-14 00:19:28,367 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-14 00:19:28,368 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 00:19:28,368 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 00:19:28,369 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 00:19:28,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:19:28" (1/1) ... [2021-07-14 00:19:28,401 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:19:28" (1/1) ... [2021-07-14 00:19:28,419 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 00:19:28,420 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 00:19:28,420 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 00:19:28,420 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 00:19:28,426 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:19:28" (1/1) ... [2021-07-14 00:19:28,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:19:28" (1/1) ... [2021-07-14 00:19:28,429 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:19:28" (1/1) ... [2021-07-14 00:19:28,429 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:19:28" (1/1) ... [2021-07-14 00:19:28,435 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:19:28" (1/1) ... [2021-07-14 00:19:28,437 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:19:28" (1/1) ... [2021-07-14 00:19:28,438 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:19:28" (1/1) ... [2021-07-14 00:19:28,441 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 00:19:28,442 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 00:19:28,442 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 00:19:28,442 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 00:19:28,443 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:19:28" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 00:19:28,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-14 00:19:28,530 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-07-14 00:19:28,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-14 00:19:28,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-14 00:19:28,531 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-07-14 00:19:28,531 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-07-14 00:19:28,532 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-07-14 00:19:28,532 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-07-14 00:19:28,532 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-07-14 00:19:28,532 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-07-14 00:19:28,532 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-07-14 00:19:28,533 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-07-14 00:19:28,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-14 00:19:28,533 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-07-14 00:19:28,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 00:19:28,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 00:19:28,537 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-14 00:19:28,966 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 00:19:28,966 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-07-14 00:19:28,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:19:28 BoogieIcfgContainer [2021-07-14 00:19:28,969 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 00:19:28,972 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 00:19:28,972 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 00:19:28,974 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 00:19:28,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 12:19:27" (1/3) ... [2021-07-14 00:19:28,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@315a01ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:19:28, skipping insertion in model container [2021-07-14 00:19:28,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:19:28" (2/3) ... [2021-07-14 00:19:28,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@315a01ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:19:28, skipping insertion in model container [2021-07-14 00:19:28,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:19:28" (3/3) ... [2021-07-14 00:19:28,977 INFO L111 eAbstractionObserver]: Analyzing ICFG safe027_pso.opt.i [2021-07-14 00:19:28,983 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 00:19:28,983 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 00:19:28,983 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 00:19:28,984 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 00:19:29,018 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,018 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,018 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,018 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,018 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,019 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,019 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,019 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,019 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,019 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,019 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,019 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,020 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,020 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,020 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,020 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,020 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,020 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,020 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,021 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,021 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,021 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,022 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,022 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,023 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,023 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,023 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,023 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,023 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,023 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,024 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,024 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,024 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,024 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,024 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,025 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,025 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,025 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,025 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,025 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,025 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,026 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,026 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,027 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,027 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,027 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,027 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,027 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,029 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,029 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,030 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,030 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,034 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,034 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,034 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,034 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,036 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,036 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,036 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,037 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,039 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,039 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,039 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,039 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:29,041 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-14 00:19:29,061 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-07-14 00:19:29,090 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 00:19:29,090 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 00:19:29,090 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 00:19:29,091 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 00:19:29,091 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 00:19:29,091 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 00:19:29,091 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 00:19:29,092 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 00:19:31,144 INFO L276 IsEmpty]: Start isEmpty. Operand has 28884 states, 24124 states have (on average 2.1248963687613993) internal successors, (51261), 28883 states have internal predecessors, (51261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:19:31,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-07-14 00:19:31,287 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:19:31,287 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:19:31,288 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:19:31,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:19:31,292 INFO L82 PathProgramCache]: Analyzing trace with hash -1244979450, now seen corresponding path program 1 times [2021-07-14 00:19:31,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:19:31,300 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333186592] [2021-07-14 00:19:31,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:19:31,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:19:31,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:31,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:19:31,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:31,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:19:31,628 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-07-14 00:19:31,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-14 00:19:31,646 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:19:31,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:19:31,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:31,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:19:31,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:31,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:19:31,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:31,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:19:31,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:19:31,710 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:19:31,711 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333186592] [2021-07-14 00:19:31,712 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333186592] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:19:31,712 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:19:31,712 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-14 00:19:31,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762883061] [2021-07-14 00:19:31,715 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 00:19:31,716 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:19:31,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 00:19:31,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-14 00:19:31,785 INFO L87 Difference]: Start difference. First operand has 28884 states, 24124 states have (on average 2.1248963687613993) internal successors, (51261), 28883 states have internal predecessors, (51261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:19:32,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:19:32,251 INFO L93 Difference]: Finished difference Result 32916 states and 59407 transitions. [2021-07-14 00:19:32,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 00:19:32,253 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-07-14 00:19:32,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:19:32,464 INFO L225 Difference]: With dead ends: 32916 [2021-07-14 00:19:32,464 INFO L226 Difference]: Without dead ends: 11308 [2021-07-14 00:19:32,465 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 135.3ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-07-14 00:19:32,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11308 states. [2021-07-14 00:19:32,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11308 to 11308. [2021-07-14 00:19:32,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11308 states, 11098 states have (on average 2.4163813299693637) internal successors, (26817), 11307 states have internal predecessors, (26817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:19:32,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11308 states to 11308 states and 26817 transitions. [2021-07-14 00:19:32,974 INFO L78 Accepts]: Start accepts. Automaton has 11308 states and 26817 transitions. Word has length 57 [2021-07-14 00:19:32,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:19:32,975 INFO L482 AbstractCegarLoop]: Abstraction has 11308 states and 26817 transitions. [2021-07-14 00:19:32,976 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:19:32,976 INFO L276 IsEmpty]: Start isEmpty. Operand 11308 states and 26817 transitions. [2021-07-14 00:19:32,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-07-14 00:19:32,987 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:19:32,988 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:19:32,988 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-14 00:19:32,988 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:19:32,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:19:32,989 INFO L82 PathProgramCache]: Analyzing trace with hash 1382413831, now seen corresponding path program 1 times [2021-07-14 00:19:32,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:19:32,989 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300353553] [2021-07-14 00:19:32,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:19:33,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:19:33,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:33,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:19:33,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:33,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:19:33,091 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-07-14 00:19:33,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-14 00:19:33,106 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:19:33,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:19:33,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:33,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:19:33,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:33,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:19:33,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:33,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:19:33,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:19:33,162 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:19:33,163 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300353553] [2021-07-14 00:19:33,163 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300353553] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:19:33,163 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:19:33,163 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-14 00:19:33,163 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785161456] [2021-07-14 00:19:33,164 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 00:19:33,164 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:19:33,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 00:19:33,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-14 00:19:33,165 INFO L87 Difference]: Start difference. First operand 11308 states and 26817 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:19:33,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:19:33,590 INFO L93 Difference]: Finished difference Result 14668 states and 35569 transitions. [2021-07-14 00:19:33,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 00:19:33,591 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-07-14 00:19:33,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:19:33,648 INFO L225 Difference]: With dead ends: 14668 [2021-07-14 00:19:33,648 INFO L226 Difference]: Without dead ends: 11236 [2021-07-14 00:19:33,649 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 247.7ms TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2021-07-14 00:19:33,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11236 states. [2021-07-14 00:19:33,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11236 to 11236. [2021-07-14 00:19:34,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11236 states, 11026 states have (on average 2.413658625068021) internal successors, (26613), 11235 states have internal predecessors, (26613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:19:34,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11236 states to 11236 states and 26613 transitions. [2021-07-14 00:19:34,045 INFO L78 Accepts]: Start accepts. Automaton has 11236 states and 26613 transitions. Word has length 59 [2021-07-14 00:19:34,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:19:34,046 INFO L482 AbstractCegarLoop]: Abstraction has 11236 states and 26613 transitions. [2021-07-14 00:19:34,046 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:19:34,046 INFO L276 IsEmpty]: Start isEmpty. Operand 11236 states and 26613 transitions. [2021-07-14 00:19:34,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-07-14 00:19:34,057 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:19:34,057 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:19:34,057 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-14 00:19:34,058 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:19:34,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:19:34,058 INFO L82 PathProgramCache]: Analyzing trace with hash 429212549, now seen corresponding path program 1 times [2021-07-14 00:19:34,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:19:34,059 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310697743] [2021-07-14 00:19:34,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:19:34,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:19:34,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:34,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:19:34,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:34,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:19:34,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:34,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:19:34,122 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-07-14 00:19:34,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-14 00:19:34,132 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:19:34,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:19:34,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:34,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:19:34,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:34,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:19:34,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:34,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:19:34,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:19:34,166 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:19:34,167 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310697743] [2021-07-14 00:19:34,167 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310697743] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:19:34,167 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:19:34,167 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-14 00:19:34,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925352466] [2021-07-14 00:19:34,168 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-14 00:19:34,168 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:19:34,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-14 00:19:34,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-07-14 00:19:34,169 INFO L87 Difference]: Start difference. First operand 11236 states and 26613 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:19:34,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:19:34,364 INFO L93 Difference]: Finished difference Result 14404 states and 37083 transitions. [2021-07-14 00:19:34,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 00:19:34,368 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-07-14 00:19:34,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:19:34,391 INFO L225 Difference]: With dead ends: 14404 [2021-07-14 00:19:34,391 INFO L226 Difference]: Without dead ends: 6268 [2021-07-14 00:19:34,392 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 121.7ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-07-14 00:19:34,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6268 states. [2021-07-14 00:19:34,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6268 to 6268. [2021-07-14 00:19:34,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6268 states, 6058 states have (on average 2.854572466160449) internal successors, (17293), 6267 states have internal predecessors, (17293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:19:34,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6268 states to 6268 states and 17293 transitions. [2021-07-14 00:19:34,748 INFO L78 Accepts]: Start accepts. Automaton has 6268 states and 17293 transitions. Word has length 60 [2021-07-14 00:19:34,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:19:34,749 INFO L482 AbstractCegarLoop]: Abstraction has 6268 states and 17293 transitions. [2021-07-14 00:19:34,749 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:19:34,749 INFO L276 IsEmpty]: Start isEmpty. Operand 6268 states and 17293 transitions. [2021-07-14 00:19:34,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-07-14 00:19:34,759 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:19:34,759 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:19:34,759 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-14 00:19:34,759 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:19:34,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:19:34,761 INFO L82 PathProgramCache]: Analyzing trace with hash -977065850, now seen corresponding path program 1 times [2021-07-14 00:19:34,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:19:34,764 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644250345] [2021-07-14 00:19:34,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:19:34,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:19:34,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:34,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:19:34,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:34,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:19:34,874 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:19:34,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:19:34,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:34,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:19:34,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:34,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:19:34,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:34,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:19:34,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:19:34,916 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:19:34,917 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644250345] [2021-07-14 00:19:34,917 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644250345] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:19:34,917 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:19:34,917 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-14 00:19:34,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520483936] [2021-07-14 00:19:34,918 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-14 00:19:34,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:19:34,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-14 00:19:34,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-14 00:19:34,919 INFO L87 Difference]: Start difference. First operand 6268 states and 17293 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:19:35,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:19:35,043 INFO L93 Difference]: Finished difference Result 7108 states and 20441 transitions. [2021-07-14 00:19:35,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 00:19:35,044 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-07-14 00:19:35,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:19:35,062 INFO L225 Difference]: With dead ends: 7108 [2021-07-14 00:19:35,063 INFO L226 Difference]: Without dead ends: 4774 [2021-07-14 00:19:35,063 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 93.2ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-07-14 00:19:35,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4774 states. [2021-07-14 00:19:35,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4774 to 4774. [2021-07-14 00:19:35,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4774 states, 4624 states have (on average 2.9167387543252596) internal successors, (13487), 4773 states have internal predecessors, (13487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:19:35,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4774 states to 4774 states and 13487 transitions. [2021-07-14 00:19:35,208 INFO L78 Accepts]: Start accepts. Automaton has 4774 states and 13487 transitions. Word has length 61 [2021-07-14 00:19:35,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:19:35,208 INFO L482 AbstractCegarLoop]: Abstraction has 4774 states and 13487 transitions. [2021-07-14 00:19:35,208 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:19:35,208 INFO L276 IsEmpty]: Start isEmpty. Operand 4774 states and 13487 transitions. [2021-07-14 00:19:35,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-07-14 00:19:35,214 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:19:35,215 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:19:35,215 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-14 00:19:35,215 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:19:35,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:19:35,216 INFO L82 PathProgramCache]: Analyzing trace with hash -1618419707, now seen corresponding path program 1 times [2021-07-14 00:19:35,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:19:35,216 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553689666] [2021-07-14 00:19:35,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:19:35,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:19:35,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:35,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:19:35,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:35,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:19:35,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:35,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:19:35,278 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-07-14 00:19:35,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-14 00:19:35,289 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:19:35,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:19:35,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:35,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:19:35,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:35,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:19:35,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:35,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:19:35,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:19:35,336 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:19:35,336 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553689666] [2021-07-14 00:19:35,336 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553689666] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:19:35,337 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:19:35,337 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-14 00:19:35,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717555161] [2021-07-14 00:19:35,338 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-14 00:19:35,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:19:35,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-14 00:19:35,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-07-14 00:19:35,339 INFO L87 Difference]: Start difference. First operand 4774 states and 13487 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:19:35,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:19:35,557 INFO L93 Difference]: Finished difference Result 6834 states and 20010 transitions. [2021-07-14 00:19:35,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 00:19:35,558 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-07-14 00:19:35,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:19:35,572 INFO L225 Difference]: With dead ends: 6834 [2021-07-14 00:19:35,572 INFO L226 Difference]: Without dead ends: 3288 [2021-07-14 00:19:35,573 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 189.4ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-07-14 00:19:35,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3288 states. [2021-07-14 00:19:35,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3288 to 3288. [2021-07-14 00:19:35,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3288 states, 3188 states have (on average 2.998431618569636) internal successors, (9559), 3287 states have internal predecessors, (9559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:19:35,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3288 states to 3288 states and 9559 transitions. [2021-07-14 00:19:35,661 INFO L78 Accepts]: Start accepts. Automaton has 3288 states and 9559 transitions. Word has length 63 [2021-07-14 00:19:35,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:19:35,662 INFO L482 AbstractCegarLoop]: Abstraction has 3288 states and 9559 transitions. [2021-07-14 00:19:35,663 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:19:35,663 INFO L276 IsEmpty]: Start isEmpty. Operand 3288 states and 9559 transitions. [2021-07-14 00:19:35,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-07-14 00:19:35,668 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:19:35,668 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:19:35,668 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-14 00:19:35,668 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:19:35,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:19:35,668 INFO L82 PathProgramCache]: Analyzing trace with hash 1337415780, now seen corresponding path program 1 times [2021-07-14 00:19:35,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:19:35,669 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347933888] [2021-07-14 00:19:35,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:19:35,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:19:35,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:35,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:19:35,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:35,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:19:35,749 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-07-14 00:19:35,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-14 00:19:35,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:35,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-14 00:19:35,774 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-07-14 00:19:35,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:19:35,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:35,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:19:35,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:19:35,785 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:19:35,786 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347933888] [2021-07-14 00:19:35,786 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347933888] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:19:35,786 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:19:35,786 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-14 00:19:35,786 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428475437] [2021-07-14 00:19:35,786 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-14 00:19:35,786 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:19:35,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-14 00:19:35,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-14 00:19:35,787 INFO L87 Difference]: Start difference. First operand 3288 states and 9559 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:19:35,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:19:35,905 INFO L93 Difference]: Finished difference Result 4372 states and 12521 transitions. [2021-07-14 00:19:35,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 00:19:35,906 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-07-14 00:19:35,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:19:35,917 INFO L225 Difference]: With dead ends: 4372 [2021-07-14 00:19:35,918 INFO L226 Difference]: Without dead ends: 3144 [2021-07-14 00:19:35,918 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 77.3ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-07-14 00:19:35,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3144 states. [2021-07-14 00:19:35,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3144 to 3144. [2021-07-14 00:19:35,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3144 states, 3044 states have (on average 3.0272667542706966) internal successors, (9215), 3143 states have internal predecessors, (9215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:19:35,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3144 states to 3144 states and 9215 transitions. [2021-07-14 00:19:35,991 INFO L78 Accepts]: Start accepts. Automaton has 3144 states and 9215 transitions. Word has length 65 [2021-07-14 00:19:35,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:19:35,991 INFO L482 AbstractCegarLoop]: Abstraction has 3144 states and 9215 transitions. [2021-07-14 00:19:35,991 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:19:35,991 INFO L276 IsEmpty]: Start isEmpty. Operand 3144 states and 9215 transitions. [2021-07-14 00:19:35,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-07-14 00:19:35,996 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:19:35,996 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:19:35,996 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-14 00:19:35,996 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:19:35,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:19:35,997 INFO L82 PathProgramCache]: Analyzing trace with hash 384833900, now seen corresponding path program 1 times [2021-07-14 00:19:35,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:19:35,997 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169219792] [2021-07-14 00:19:35,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:19:36,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:19:36,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:36,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:19:36,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:36,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:19:36,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:36,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:19:36,040 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-07-14 00:19:36,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-14 00:19:36,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:36,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-14 00:19:36,063 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-07-14 00:19:36,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:19:36,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:36,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:19:36,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:19:36,074 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:19:36,074 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169219792] [2021-07-14 00:19:36,074 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169219792] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:19:36,075 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:19:36,075 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-14 00:19:36,075 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235980424] [2021-07-14 00:19:36,075 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 00:19:36,075 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:19:36,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 00:19:36,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-14 00:19:36,076 INFO L87 Difference]: Start difference. First operand 3144 states and 9215 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:19:36,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:19:36,276 INFO L93 Difference]: Finished difference Result 3705 states and 10633 transitions. [2021-07-14 00:19:36,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 00:19:36,276 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-07-14 00:19:36,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:19:36,285 INFO L225 Difference]: With dead ends: 3705 [2021-07-14 00:19:36,285 INFO L226 Difference]: Without dead ends: 2569 [2021-07-14 00:19:36,286 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 159.1ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-07-14 00:19:36,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2569 states. [2021-07-14 00:19:36,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2569 to 2569. [2021-07-14 00:19:36,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2569 states, 2473 states have (on average 3.028710068742418) internal successors, (7490), 2568 states have internal predecessors, (7490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:19:36,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2569 states to 2569 states and 7490 transitions. [2021-07-14 00:19:36,343 INFO L78 Accepts]: Start accepts. Automaton has 2569 states and 7490 transitions. Word has length 66 [2021-07-14 00:19:36,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:19:36,343 INFO L482 AbstractCegarLoop]: Abstraction has 2569 states and 7490 transitions. [2021-07-14 00:19:36,343 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:19:36,343 INFO L276 IsEmpty]: Start isEmpty. Operand 2569 states and 7490 transitions. [2021-07-14 00:19:36,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-07-14 00:19:36,347 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:19:36,347 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:19:36,348 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-07-14 00:19:36,348 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:19:36,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:19:36,348 INFO L82 PathProgramCache]: Analyzing trace with hash 2073091467, now seen corresponding path program 1 times [2021-07-14 00:19:36,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:19:36,348 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959001047] [2021-07-14 00:19:36,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:19:36,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:19:36,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:36,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:19:36,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:36,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:19:36,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:36,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:19:36,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:36,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:19:36,403 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-07-14 00:19:36,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-14 00:19:36,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:36,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-14 00:19:36,425 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-07-14 00:19:36,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:19:36,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:36,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:19:36,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:19:36,435 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:19:36,435 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959001047] [2021-07-14 00:19:36,435 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959001047] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:19:36,435 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:19:36,435 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-14 00:19:36,435 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486361261] [2021-07-14 00:19:36,435 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-14 00:19:36,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:19:36,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-14 00:19:36,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-07-14 00:19:36,436 INFO L87 Difference]: Start difference. First operand 2569 states and 7490 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:19:36,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:19:36,595 INFO L93 Difference]: Finished difference Result 2398 states and 6651 transitions. [2021-07-14 00:19:36,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 00:19:36,596 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-07-14 00:19:36,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:19:36,600 INFO L225 Difference]: With dead ends: 2398 [2021-07-14 00:19:36,600 INFO L226 Difference]: Without dead ends: 1558 [2021-07-14 00:19:36,601 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 111.4ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-07-14 00:19:36,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1558 states. [2021-07-14 00:19:36,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1558 to 1558. [2021-07-14 00:19:36,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1558 states, 1486 states have (on average 2.833109017496635) internal successors, (4210), 1557 states have internal predecessors, (4210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:19:36,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1558 states to 1558 states and 4210 transitions. [2021-07-14 00:19:36,630 INFO L78 Accepts]: Start accepts. Automaton has 1558 states and 4210 transitions. Word has length 67 [2021-07-14 00:19:36,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:19:36,630 INFO L482 AbstractCegarLoop]: Abstraction has 1558 states and 4210 transitions. [2021-07-14 00:19:36,631 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:19:36,631 INFO L276 IsEmpty]: Start isEmpty. Operand 1558 states and 4210 transitions. [2021-07-14 00:19:36,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-07-14 00:19:36,633 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:19:36,633 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:19:36,633 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-07-14 00:19:36,633 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:19:36,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:19:36,634 INFO L82 PathProgramCache]: Analyzing trace with hash -653178806, now seen corresponding path program 1 times [2021-07-14 00:19:36,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:19:36,634 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992384896] [2021-07-14 00:19:36,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:19:36,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:19:36,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:36,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:19:36,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:36,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:19:36,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:36,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:19:36,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:36,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:19:36,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:36,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:19:36,723 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-07-14 00:19:36,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-14 00:19:36,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:36,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-14 00:19:36,745 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-07-14 00:19:36,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:19:36,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:36,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:19:36,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:19:36,754 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:19:36,754 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992384896] [2021-07-14 00:19:36,754 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992384896] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:19:36,754 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:19:36,754 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-07-14 00:19:36,754 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876481671] [2021-07-14 00:19:36,755 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-14 00:19:36,755 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:19:36,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-14 00:19:36,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-07-14 00:19:36,755 INFO L87 Difference]: Start difference. First operand 1558 states and 4210 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:19:36,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:19:36,936 INFO L93 Difference]: Finished difference Result 1072 states and 2685 transitions. [2021-07-14 00:19:36,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 00:19:36,937 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2021-07-14 00:19:36,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:19:36,940 INFO L225 Difference]: With dead ends: 1072 [2021-07-14 00:19:36,940 INFO L226 Difference]: Without dead ends: 631 [2021-07-14 00:19:36,940 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 136.1ms TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2021-07-14 00:19:36,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2021-07-14 00:19:36,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 631. [2021-07-14 00:19:36,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 631 states, 604 states have (on average 2.3427152317880795) internal successors, (1415), 630 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:19:36,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 1415 transitions. [2021-07-14 00:19:36,955 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 1415 transitions. Word has length 69 [2021-07-14 00:19:36,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:19:36,955 INFO L482 AbstractCegarLoop]: Abstraction has 631 states and 1415 transitions. [2021-07-14 00:19:36,956 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:19:36,956 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 1415 transitions. [2021-07-14 00:19:36,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-07-14 00:19:36,957 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:19:36,957 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:19:36,957 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-07-14 00:19:36,957 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:19:36,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:19:36,957 INFO L82 PathProgramCache]: Analyzing trace with hash -1031553589, now seen corresponding path program 1 times [2021-07-14 00:19:36,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:19:36,958 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721083418] [2021-07-14 00:19:36,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:19:36,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:19:36,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:36,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:19:36,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:36,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:19:36,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:36,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:19:36,994 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:19:36,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:19:37,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:37,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:19:37,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:37,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:19:37,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:37,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:19:37,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:19:37,024 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:19:37,024 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721083418] [2021-07-14 00:19:37,024 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721083418] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:19:37,024 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:19:37,024 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-14 00:19:37,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599101996] [2021-07-14 00:19:37,025 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 00:19:37,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:19:37,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 00:19:37,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-14 00:19:37,025 INFO L87 Difference]: Start difference. First operand 631 states and 1415 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:19:37,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:19:37,111 INFO L93 Difference]: Finished difference Result 997 states and 2395 transitions. [2021-07-14 00:19:37,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 00:19:37,111 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-07-14 00:19:37,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:19:37,113 INFO L225 Difference]: With dead ends: 997 [2021-07-14 00:19:37,113 INFO L226 Difference]: Without dead ends: 531 [2021-07-14 00:19:37,114 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 68.5ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-07-14 00:19:37,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2021-07-14 00:19:37,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 531. [2021-07-14 00:19:37,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 504 states have (on average 2.492063492063492) internal successors, (1256), 530 states have internal predecessors, (1256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:19:37,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 1256 transitions. [2021-07-14 00:19:37,122 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 1256 transitions. Word has length 71 [2021-07-14 00:19:37,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:19:37,122 INFO L482 AbstractCegarLoop]: Abstraction has 531 states and 1256 transitions. [2021-07-14 00:19:37,122 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:19:37,122 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 1256 transitions. [2021-07-14 00:19:37,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-07-14 00:19:37,123 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:19:37,124 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:19:37,124 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-07-14 00:19:37,124 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:19:37,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:19:37,124 INFO L82 PathProgramCache]: Analyzing trace with hash -2127348239, now seen corresponding path program 2 times [2021-07-14 00:19:37,124 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:19:37,125 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252417072] [2021-07-14 00:19:37,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:19:37,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:19:37,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:37,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:19:37,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:37,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:19:37,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:37,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:19:37,177 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:19:37,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:19:37,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:37,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:19:37,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:37,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:19:37,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:37,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:19:37,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:19:37,207 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:19:37,207 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252417072] [2021-07-14 00:19:37,207 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252417072] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:19:37,207 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:19:37,208 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-14 00:19:37,208 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682956869] [2021-07-14 00:19:37,208 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 00:19:37,208 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:19:37,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 00:19:37,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-14 00:19:37,209 INFO L87 Difference]: Start difference. First operand 531 states and 1256 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:19:37,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:19:37,264 INFO L93 Difference]: Finished difference Result 423 states and 1040 transitions. [2021-07-14 00:19:37,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 00:19:37,265 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-07-14 00:19:37,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:19:37,265 INFO L225 Difference]: With dead ends: 423 [2021-07-14 00:19:37,265 INFO L226 Difference]: Without dead ends: 0 [2021-07-14 00:19:37,265 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 65.8ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-07-14 00:19:37,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-14 00:19:37,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-14 00:19:37,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:19:37,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-14 00:19:37,266 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 71 [2021-07-14 00:19:37,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:19:37,266 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-14 00:19:37,267 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:19:37,267 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-14 00:19:37,267 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-14 00:19:37,267 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-07-14 00:19:37,269 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-14 00:19:37,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.07 12:19:37 BasicIcfg [2021-07-14 00:19:37,270 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-14 00:19:37,273 INFO L168 Benchmark]: Toolchain (without parser) took 9336.57 ms. Allocated memory was 194.0 MB in the beginning and 2.3 GB in the end (delta: 2.1 GB). Free memory was 176.3 MB in the beginning and 2.0 GB in the end (delta: -1.8 GB). Peak memory consumption was 312.6 MB. Max. memory is 8.0 GB. [2021-07-14 00:19:37,273 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 127.9 MB. Free memory is still 108.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-14 00:19:37,273 INFO L168 Benchmark]: CACSL2BoogieTranslator took 431.90 ms. Allocated memory is still 194.0 MB. Free memory was 176.3 MB in the beginning and 167.2 MB in the end (delta: 9.0 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-07-14 00:19:37,274 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.81 ms. Allocated memory is still 194.0 MB. Free memory was 166.9 MB in the beginning and 165.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-14 00:19:37,274 INFO L168 Benchmark]: Boogie Preprocessor took 21.40 ms. Allocated memory is still 194.0 MB. Free memory was 165.1 MB in the beginning and 163.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-14 00:19:37,274 INFO L168 Benchmark]: RCFGBuilder took 527.34 ms. Allocated memory is still 194.0 MB. Free memory was 163.5 MB in the beginning and 173.4 MB in the end (delta: -9.9 MB). Peak memory consumption was 28.4 MB. Max. memory is 8.0 GB. [2021-07-14 00:19:37,278 INFO L168 Benchmark]: TraceAbstraction took 8298.95 ms. Allocated memory was 194.0 MB in the beginning and 2.3 GB in the end (delta: 2.1 GB). Free memory was 172.9 MB in the beginning and 2.0 GB in the end (delta: -1.8 GB). Peak memory consumption was 308.9 MB. Max. memory is 8.0 GB. [2021-07-14 00:19:37,280 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 127.9 MB. Free memory is still 108.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 431.90 ms. Allocated memory is still 194.0 MB. Free memory was 176.3 MB in the beginning and 167.2 MB in the end (delta: 9.0 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 50.81 ms. Allocated memory is still 194.0 MB. Free memory was 166.9 MB in the beginning and 165.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 21.40 ms. Allocated memory is still 194.0 MB. Free memory was 165.1 MB in the beginning and 163.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 527.34 ms. Allocated memory is still 194.0 MB. Free memory was 163.5 MB in the beginning and 173.4 MB in the end (delta: -9.9 MB). Peak memory consumption was 28.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 8298.95 ms. Allocated memory was 194.0 MB in the beginning and 2.3 GB in the end (delta: 2.1 GB). Free memory was 172.9 MB in the beginning and 2.0 GB in the end (delta: -1.8 GB). Peak memory consumption was 308.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 132501, positive: 129258, positive conditional: 129258, positive unconditional: 0, negative: 3243, negative conditional: 3243, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 132051, positive: 129258, positive conditional: 0, positive unconditional: 129258, negative: 2793, negative conditional: 0, negative unconditional: 2793, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 984, positive: 963, positive conditional: 0, positive unconditional: 963, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 984, positive: 956, positive conditional: 0, positive unconditional: 956, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 28, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 89, positive: 36, positive conditional: 0, positive unconditional: 36, negative: 53, negative conditional: 0, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 132051, positive: 128295, positive conditional: 0, positive unconditional: 128295, negative: 2772, negative conditional: 0, negative unconditional: 2772, unknown: 984, unknown conditional: 0, unknown unconditional: 984] , Statistics on independence cache: Total cache size (in pairs): 984, Positive cache size: 963, Positive conditional cache size: 0, Positive unconditional cache size: 963, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, Independence queries for same thread: 450 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 9 procedures, 128 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8179.4ms, OverallIterations: 11, TraceHistogramMax: 1, EmptinessCheckTime: 330.8ms, AutomataDifference: 2673.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1920.0ms, PartialOrderReductionTime: 1898.2ms, HoareTripleCheckerStatistics: 1221 SDtfs, 1837 SDslu, 4102 SDs, 0 SdLazy, 551 SolverSat, 109 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 455.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 150 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 1406.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=28884occurred in iteration=0, InterpolantAutomatonStates: 112, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 1665.4ms AutomataMinimizationTime, 11 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 33.7ms SsaConstructionTime, 230.5ms SatisfiabilityAnalysisTime, 1141.2ms InterpolantComputationTime, 709 NumberOfCodeBlocks, 709 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 698 ConstructedInterpolants, 0 QuantifiedInterpolants, 2500 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...